Question

RESOLVA a)3/7+2 b)5-3/2 c)3/2+4/2-1/2 d)3/5+1/2-1/3 e)3.2/7 f)1/3.4/3

Answer 1

a)
$\frac{3}{7} +2 \\ \frac{3}{7} \times \frac{2}{1} \\ \frac{3}{7} + \frac{14}{7} \\ \frac{17}{7} \\ 2 \frac{3}{7}$
b)
$5 - \frac{3}{2} \\ \frac{5}{1} - \frac{3}{2} \\ \frac{10}{2} - \frac{3}{2} \\ \frac{7}{2} = 3 \frac{1}{2}$
c)
$\frac{3}{2} + 4 \\ \frac{3}{2} + \frac{4}{1} \\ \frac{3}{2} + \frac{8}{2} \\ \frac{11}{2} =5 \frac{1}{2}$
d)
$\frac{3}{5} + 1 \\ \frac{3}{5} + \frac{1}{1} \\ \frac{3}{5} + \frac{5}{5} \\ \frac{8}{5} = 1 \frac{3}{5}$
e)
$3 \times \frac{2}{7} \\ \frac{6}{7}$
f)
$\frac{1}{3} \times \frac{4}{3} \\ \frac{4}{9}$